Burger, R. (Robert)Burt, William Austin, 1792-1858Canfield, Augustus, d. 1854Holcroft, JohnR. Burger & Company.Bathymetry shown by soundings and contours in feet. Shows "proposed canal" and surrounding cultural features. Includes profile. Vertical scale [ca. 1:245]. 1 map; 31 x 45 cmJPEGb41b54f5-db78-4501-b373-e9b451468841engPublicMap of the canal at the Saut Ste. Mary from a survey by Captain Canfield and Judge Burt; John Holcroft, assistant; drawn by John Holcroft.MapsMichigan--Sault Sainte MarieMichigan1852University of Michigan